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--- reprap_software [2007-10-01 13:03] – created 192.168.1.38
+++ reprap_software [2007-10-05 10:39] – 192.168.1.48
@@ Line 1: / Line 1: @@
 ====== PPC java ======
-since we are using this mac laptop as the dedicated reprap machine, this page will contain some rants about dealing with that architechtural peculiarity. first up, java. the [[https://help.ubuntu.com/community/Java|ubuntu java]] page suggests using the IBM jdk. Hint: the package you want to install (after adding the medibuntu repository and key) is ibm-j2sdk1.5.
+since we are using this mac laptop as the dedicated [[reprap]] machine, this page will contain some rants about dealing with the ppc peculiarity. first up, java. the [[https://help.ubuntu.com/community/Java|ubuntu java]] page suggests using the IBM jdk. Hint: the package you want to install (after adding the medibuntu repository and key) is ''ibm-j2sdk1.5''.
+you also need the following packages (further details may ba found at http://packages.ubuntu.com/)
+  * libstdc++5 (which is missing from the IBM jdk requirements)
+  * ant-optional (for javah task)
+  * libx11-dev (and all its dependencies)
+  * mesa-common-dev (for glext.h)
+the java3d source
+  * register at https://java3d.dev.java.net/ and follow the instructions for checkingout vecmath, j3d-core and j3d-core-utils.
+  * run ant in vecmath, then j3d-core directories
+note that the java3d source packages are called ''j3d-*'', don't confuse this with the j3d.org site and it's utility libraries. one of which you also need.
+===== RXTX =====
+used the "Mac OSX/Source package" for RXTX version 2.1. there were numerous compile/configure errors involving a non-existent kernel define ''UTS_RELEASE''. as a quick workaround I commented out these sections of code (which were just checking that the running kernel matched the compiled source).
+===== RepRap Host =====
+initially i added the java3d jar files on the classpath with ''-classpath'', but later discovered that the ''-jar'' method of launching RepRap defeats this.
+ultimately i just copied all of the jar files to the correct places, eg:
+<code>
+sudo mv j3d-org-java3d-all.jar /usr/lib/j2sdk1.5-ibm/jre/lib/ext/
+sudo cp -v j3d-core/build/linux-ppc/opt/lib/ext/j3dcore.jar /usr/lib/j2sdk1.5-ibm/jre/lib/ext
+sudo cp -v j3d-core/build/linux-ppc/opt/lib/ext/j3dutils.jar /usr/lib/j2sdk1.5-ibm/jre/lib/ext
+sudo cp -v vecmath/build/opt/lib/ext/vecmath.jar /usr/lib/j2sdk1.5-ibm/jre/lib/ext
+sudo cp -v j3d-core/build/linux-ppc/opt/native/ogl/objs/libj3dcore-ogl.so /usr/lib/j2sdk1.5-ibm/jre/bin/
+</code>
+(the first one is the j3d.org jar file we need which contains the STLLoader and is linked from the [[http://reprap.org/bin/view/Main/RepRapLinuxSoftware#The_j3d_org_3D_utility_library|ReprapLinuxSoftware]] page)
+and finally, we were getting a lot of errors like:
+<code>
+STLObject(): Exception loading STL file from: file:/home/foam/code/reprap-host-0.8.1/reprap-wv.stl
+com.sun.j3d.loaders.IncorrectFormatException: sun.io.MalformedInputException
+</code>
+which was ultimately fixed by running in a non-UTF-8 locale, I did this by editing the ''reprap-host.sh'' script to:
+<code>
+#!/bin/bash
+LANG=${LANG%%.UTF-8} java -Xmx384m -jar Reprap.jar
+</code>
+the ''LANG='' part is just a smarty-pants way of stripping the ''.UTF-8'' part of your locale.
+this locale problem is described in ''/usr/lib/j2sdk1.5-ibm/docs/en/sdkandruntimeguide.lnx.en.htm''